Childhood immunization in Ghana: Tracing the history and projecting the future

Abstract

Childhood immunization has contributed significantly to child survival globally. Ghana adopted the Expanded Program on Immunization (EPI) in the year 1972, and since then Ghana's immunization program has chalked huge successes in disease prevention, particularly the drastic reduction in the incidence of the six childhood killer diseases. Despite these successes, there are shortfalls that affect childhood vaccinations in Ghana. Here, we look at the evolution of childhood vaccine adoption in Ghana, the disease burden in the pre‐vaccination era and the vaccination era, the benefits of the immunization program, and the identified shortfalls. More importantly, the impact of childhood immunization on the current state of vaccine‐preventable diseases and the prospects the future holds for vaccine development and disease prevention in Ghana were discussed. Undoubtedly, Ghana has made significant progress in vaccine adoption and expansion of immunization program, resulting in a significant reduction in vaccine‐preventable deaths particularly in children. However, challenges pertaining to vaccine coverage, periodic shortages of vaccine, untimely immunization, and logistics constraints persist, which need redress. Moreover, there is currently no continuous post‐vaccine surveillance to evaluate long‐term vaccine impact. Additionally, Ghana lacks the technology and skill to manufacture its own vaccines. Following the establishment of the National Vaccine Institute, Ghana should be in the position to start the production of established vaccines such as those covered under EPI, whereas collaborative research is needed to discover new vaccines. Finally, it is critical to network childhood immunization records across the nation to ensure enhanced data for planning.